The new 659hp GT Speed is probably the best super-GT Bentley has ever made. But is it good enough to outpoint the 650hp Porsche 911 Turbo S - arguably the most capable all-weather sports car currently on sale...

Read the full Bentley GT Speed review: https://www.pistonheads.com/news/ph-d...

Read the full Porsche 911 Turbo S review: https://www.pistonheads.com/news/ph-d...

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